You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%E7%A7%91%E6%99%AE%E7%AD%94%E7%96%91' at line 1
select bclassid from ***_enewsclass where classid=%E7%A7%91%E6%99%AE%E7%AD%94%E7%96%91